We use pine shavings and sweet PDZ in the coop during the winter, then mainly the sweet PDZ alone during the summer when it's hot. It scoops well with a kitty litter scoop and there's little/no smell. I like hay for the nesting boxes and put it in cardboard boxes so that I can toss the boxes and replace the hay if there's a broken egg in the nest. Our run is harder to keep clean, especially when we get a lot of rain, but I've ended up liking fallen leaves/pine needles raked up around the yard (we have lots of woods near the run). It's free, and I can rake it out and replace it easily and the girls love scratching around whenever I add new piles. My biggest problem is all the poo on top of their coop where they like to hang out during the day if they're not out free ranging--ick!